About Us

Company Overview

OpEx Consulting helps clients through education, guided improvement projects and hands-on project work by:

  • Implementing operational excellence using Lean and Six Sigma tools and methodology
  • Delivering quality systems improvement projects, and
  • Designing and implementing an integrated supply chain strategy

We are a practitioners’ consulting firm with experience running operations in industry as well as coaching and designing programs for our clients to achieve operational, quality and supply chain improvements.

Executive Profiles

Monica Lammert

Monica Lammert


Monica has over 35 years of experience in Operations and Supply Chain Management in Automotive, Industrial Products, Aerospace, Electronics, and Commercial/Security Printing manufacturing operations.

Monica is the Founder and Principal of OpEx Consulting, LLC, a firm concentrating on educating and implementing Supply Chain, Manufacturing Operations, and Lean improvement programs. Most recently as a director with PwC Monica worked with major manufacturing clients to build or improve Supply Chain Operations, Quality Management Systems, and Operational Excellence.

Prior to joining PwC, Monica held senior leadership positions in engineering, production management, manufacturing operations, and supply chain management in diverse industries. Her expertise is in establishing high performing integrated manufacturing and supply chain teams, and operational excellence. Focusing on strategy, planning, and execution in a continuous improvement environment she has redesigned SCM organizations, improved supplier and operational performance, implemented S&OP processes, supply base right-sizing, optimized work capital, identified and improved operational performance and developed robust streamlined New Product Introduction Processes.

Monica is an APICS instructor qualified to teach CPIM, Principles, CSCP and SCOR, and has been adjunct professor teaching SCM curriculum at the undergraduate and graduate level for many years.

Monica holds a BS in Industrial Engineering and an MBA with a Supply Chain concentration. She is a certified Lean Practitioner, ISO Lead Auditor, and holds CSCP and CPIM certifications, and SCOR-P endorsement.

Bernie Ellers

Bernie Ellers

Management Consultant

Bernie Ellers is a seasoned professional with over 3 decades of experience in Quality Management and regulatory compliance functions. He possesses strong analytical problem-solving skills and is quite adept at complex multitasking and working in pressured environments. His experience in working across the United States and Latin America in various management capacities displays his leadership capacities, the ability to manage staff and cross-functional teams.

Bernie currently serves as a Management Consultant where he provides guidance in organizational development, CAPA systems, Management Controls, and roles and responsibilities of the Quality functions for organizations undergoing Quality System remediation.

Bernie holds a bachelor’s degree in Chemistry with a minor in Biology from the University of North Carolina, Pembroke where he won the American Institute of Chemist Student Award and the Linus Pauling Physical Science Scholarship.



  • APICS Approved Trainers: CPIM, CSCP, SCOR and Principles
  • Lean Practitioner Training
  • Quality Systems Training


  • Management Consulting in a Manufacturing Environment


  • APICS: CPIM, CSCP, SCOR and Principles:

Principles of Inventory Management (PIM)

Principles of Operations Planning (POP)

Principles of Manufacturing Management

Principles of Distribution and Logistics

Principles of Managing Operations (PMO)


  • Lean Practitioner Training
  • Quality Systems
  • Supply Chain
  • Management Consulting and Advisory Solutions




Colorado Springs, Colorado

Dunedin, Florida

Email: monica.lammert@theopexteam.com

Phone: (719)208-9683


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